TYSON, P.D.; KRUGER, F.J.; LOUW, C.W. ’ATMOSPHERIC POLLUTION AND ITS IMPLICATIONS IN THE EASTERN TRANSVAAL HIGHVELD. Clean Air Journal, [S. l.], v. 7, n. 6, p. 15–17, 1988. DOI: 10.17159/caj/1988/7/6.7209. Disponível em: https://cleanairjournal.org.za/article/view/7209. Acesso em: 3 jul. 2024.